JP6737420B2 - Elevator handrail device - Google Patents

Description

The present invention relates to an elevator handrail device provided on a top surface of a car.

There is an elevator car device (Patent Document 1) that can reduce the overall height dimension when the handrail device is located at the storage position.

JP, 2010-58861, A

However, in such an elevator handrail device, since the worker himself/herself performs the handrail assembly work, there is a problem that the labor of the maintenance work increases. Further, when the worker starts the maintenance work, the work can be performed before assembling the handrail, so that there is a problem that the safety is lowered.

The present invention has been made to solve the above problems, and an object thereof is to allow an operator to get on the top surface of a car in order to perform maintenance work so that the worker does not perform an assembly operation by himself. An object of the present invention is to provide an elevator handrail device in which the handrail is assembled from the storage position to the use position.

An elevator handrail device according to the present invention includes a handrail base portion fixed to a car upper surface, a handrail movable portion that is connected to the handrail base portion and is vertically movable above the handrail base portion, and a handrail movable portion and a car upper surface. A storage position that is provided between the upper end of the handrail base or higher than this and is held when the handrail movable part is stored, and a storage position that is higher than the storage position and used when the handrail movable part is used. The first movable means for displacing the handrail movable part between the working position, a work table that is provided so as to spread over the upper surface of the basket on which the worker stands and that can move up and down above the upper surface of the car, and a work platform. A normal position that is provided between the car and the upper surface of the car and that is held when the work platform is not used, and a lower position that is lower than the normal position and that is held when the work platform is used. position and, a second movable means for displacement of the platform between, when displaced to the lowered position from the normal position by the worktable second movable means, transmitting the platform displacement in the first movable means When the displacement of the workbench is transmitted by the transmission mechanism, the first movable means displaces the handrail movable portion from the storage position to the use position.

The present invention can realize a handrail device for an elevator in which a handrail can be assembled from a storage position to a use position by itself without the worker performing an assembling work by a worker getting on the upper surface of the car for performing maintenance work.

FIG. 2 is a front view showing the entire handrail device (when in use) according to Embodiment 1 of the present invention. FIG. 2 is an enlarged view (front view) showing the handrail device of FIG. 1 (when in use) according to Embodiment 1 of the present invention. FIG. 2 is an enlarged view (front view) showing the handrail device of FIG. 1 (when stored) according to Embodiment 1 of the present invention. It is a side view which shows the principal part of the handrail apparatus (at the time of storage) of FIG. 3 by Embodiment 1 of this invention. FIG. 5 is an enlarged view showing a main part of the handrail device (when stored) of FIG. 4 according to Embodiment 1 of the present invention. FIG. 5 is an enlarged view showing a main part of the handrail device (in use) of FIG. 4 according to Embodiment 1 of the present invention. FIG. 3 is a side view showing a main part of the handrail device (in use) of FIG. 2 according to Embodiment 1 of the present invention. It is a front view which shows the handrail apparatus (when using) by Embodiment 2 of this invention. It is a front view which shows the handrail apparatus (at the time of storage) by Embodiment 2 of this invention. FIG. 9 is a side view showing an essential part of the handrail device of FIG. 8 (when in use) according to Embodiment 2 of the present invention. FIG. 10 is a side view showing a main part of the handrail device (when stored) of FIG. 9 according to Embodiment 2 of the present invention. It is a front view which shows the handrail apparatus (when using) by Embodiment 3 of this invention. It is a front view which shows the handrail apparatus (at the time of storage) by Embodiment 3 of this invention. FIG. 13 is a side view showing an essential part of the handrail device of FIG. 12 (when in use) according to Embodiment 3 of the present invention. FIG. 14 is a side view showing the main part of the handrail device (when stored) of FIG. 13 according to Embodiment 2 of the present invention. It is a top view which shows the handrail apparatus by Embodiment 3 of this invention.

Embodiment 1.
1 to 7 illustrate an elevator handrail device according to Embodiment 1 of the present invention. FIG. 1 is a front view showing the entire handrail device (when used), and FIG. 2 is the handrail device shown in FIG. 1 (when used). ) Is an enlarged view (front view), and FIG. 3 is an enlarged view (front view) showing the handrail device (when stored) of FIG. 1. 4 is a side view showing an essential part of the handrail device (when stored) of FIG. 3, FIG. 5 is an enlarged view showing an essential part of the handrail device (when stored) of FIG. 4, and FIG. 6 is a handrail device of FIG. 4 (used). FIG. 7 is a side view showing an essential part of the handrail device of FIG. 2 (when in use). It should be noted that door cage devices, door motors, etc. are omitted from the drawings as elevator car equipment.

In the figure, a car 1 of the elevator apparatus has a horizontal car upper surface 1a. A handrail device 2 is provided on the car upper surface 1a. In this example, the handrail device 2 is erected along the left and right edges and the rear edge of the car top surface 1a. Further, the handrail device 2 has a handrail base portion 3 (lower handrail) fixed to the car upper surface 1a, and a handrail movable portion 4 (upper handrail) connected to the handrail base portion 3. A slide mechanism 5 is provided so that the upper part of the handrail base 3 and the lower part of the handrail movable part 4 are partially overlapped with each other so as to guide the handrail movable part 4 in the vertical direction. A spring 6 is arranged between the handrail base 3 and the handrail movable part 4 of the slide mechanism 5, and the handrail movable part 4 is in a use position protruding upward from the handrail base 3 and a position lowered from the use position. It can move up and down with respect to the handrail base 3 between the storage position. That is, in the handrail movable portion 4, the spring 6 is held in a compressed state at the storage position, and the spring 6 is held in an extended state at the use position.

FIG. 2 shows a state in which the handrail movable portion 4 is located at the use position, and FIG. 3 shows a state in which the handrail movable portion 4 is displaced to the storage position. The overall height of the handrail device 2 is variable by moving the handrail movable portion 4 up and down. That is, by displacing the handrail movable portion 4 from the use position to the storage position, the height dimension of the entire handrail device 2 can be reduced.

In the state where the handrail movable portion 4 is located at the use position, the height dimension of the handrail device 2 is such that an operator does not accidentally get over the handrail device 2 and move to the outside of the handrail device 2 (for example, 1100 mm or more). ). Further, in the state where the handrail movable part 4 is displaced to the storage position, the height dimension of the handrail device 2 is suppressed to be smaller than that when the handrail movable part 4 is located at the use position (for example, 700 mm or less).

A workbench 7 is provided on the car upper surface 1a at a position where a worker gets into the car 1 and stops when performing maintenance of equipment (not shown) such as a hoist installed in the hoistway. A spring 8 is provided between the back side of the work table 7 and the top surface 1a of the car so as to guide the work table 7 so as to be vertically movable according to the load. The workbench 7 is moved up and down by a spring 8 between the height when it is not stepped on by the worker (normal position) and the height when it is stepped on by the worker from the upper side of the workbench (lower position). It is movably guided.

Between the handrail base portion 3 and the handrail movable portion 4, a plurality of holding mechanisms 9 and 10 for mechanically holding the handrail movable portion 4 in the use position or the storage position are provided. A connecting rod 11 is arranged between the holding mechanism 9 and the workbench 7, and the connecting rod 11 is vertically movable in synchronization with the vertical movement of the workbench 7.

The holding mechanism 9 is provided with a latch member 12 that holds the handrail movable portion 4 in the storage position, and a receiving portion 12a that is provided in the handrail movable portion 4 and that can be engaged with the latch member 12. One side of the latch member 12 is rotatably connected to the connecting rod 11, and the other side is provided with a claw capable of engaging with the receiving portion 12a. When the workbench 7 is in the normal position, the tab of the latch member 12 engages with the receiving portion 12a, thereby holding the handrail movable portion 4 in the storage position against the repulsive force of the compressed spring 6. When the workbench 7 is displaced from the normal position to the lowered position, the claws of the latch member 12 are pulled down and come off from the receiving portion 12a. When the engagement between the latch member 12 and the receiving portion 12a is released, the handrail movable portion 4 is displaced from the storage position to the use position by the repulsive force of the spring 6.

Further, the holding mechanism 10 is provided with a latch member 13 that holds the handrail movable portion 4 in the use position. The handrail movable portion 4 is connected to one side of the latch member 13 via a spring 14. When the handrail movable portion 4 is displaced from the storage position to the use position, the other side of the latch member 13 engages with the handrail base portion 3 to hold the handrail movable portion 4 in the use position.

Next, the operation of the first embodiment configured as described above will be described. When an operator, such as a hoist installed in the hoistway, maintains the car top surface 1a of the car 1 when performing maintenance, the worker moves to a position on the car top surface 1a where the equipment can be maintained. .. When the worker moves to a predetermined position on the car upper surface 1a and stops for maintenance, the workbench 7 arranged at that position is stepped on by the worker. When the workbench 7 is displaced from the normal position to the lowered position by the weight of the worker, the connecting rod 11 is also lowered synchronously. Here, when the tab of the latch member 12 is disengaged from the receiving portion 12a due to the lowering of the connecting rod 11, the spring 6 of the slide mechanism 5 extends from the compressed state. Due to the repulsive force of the spring 6 acting at this time, the handrail movable portion 4 is displaced from the stored position to the used position by itself. When the handrail movable portion 4 is displaced to the use position, the spring 6 is in an expanded state, but the latch member 13 engages with the handrail base portion 3 to hold the handrail movable portion 4 in the use position.

When the worker separates from the work table 7 after the handrail movable portion 4 is held in the use position, the work table 7 is displaced by the spring 8 and returns from the lowered position to the normal position. On the other hand, at this time, since the handrail movable portion 4 is engaged with the handrail base portion 3 by the latch member 13, the handrail movable portion 4 does not move to the storage position and remains held at the use position. Therefore, when the maintenance work is finished, the worker manually removes the latch member 13 from the handrail base portion 3 and pushes the handrail movable portion 4 downward to displace the spring 6 from the use position to the storage position while compressing the spring 6. .. Further, by engaging the receiving portion 12a of the handrail movable portion 4 displaced to the storage position with the latch 12, the handrail movable portion 4 is held at the storage position.

As described above, according to the first embodiment, between the handrail base 3 fixed to the car upper surface 1a, the handrail movable part 4 connected to the handrail base 3, and the handrail base 3 and the handrail movable part 4. And a first holding mechanism for mechanically holding the handrail movable portion 4 in the storage position, a first movable means provided in the storage unit for displacing the handrail movable portion 4 from the storage position to the use position, and a handrail movable portion. A second holding mechanism for mechanically holding 4 in a use position, a work table 7 that extends over at least a part of the surface 1a of the upper part of the basket 1 on which the worker stands, and work depending on the weight applied to the work table 7. The second movable means for guiding the height of the platform 7 between the normal position and the lowered position so as to be movable up and down, and the first holding mechanism are provided so that the platform 7 can be displaced in association with the vertical movement. Therefore, one side is fixed to the work table 7 and the other side is provided with the connecting rod 11 provided with the first latch member 12 capable of holding the handrail movable portion 4 in the storage position, and the work table 7 is arranged in the normal position. At this time, the first latch member 12 is engageable, and the receiving portion 12a that is engageable with the first latch member 12 and can hold the handrail movable portion 4 at the storage position is provided. When a worker gets on the upper surface 1a of the car 1 to perform maintenance work, only by stepping on the work table 7, the handrail movable part 4 displaces itself from the storage position to the use position without the worker performing assembly work. It is possible to provide the handrail device.

The first movable means is provided between the handrail base portion 3 and the handrail movable portion 4, and the slide mechanism 5 is arranged so as to partially guide each other in the vertical direction, and one of the handrail base portions 3 is provided. And a spring 6 fixed to the handrail movable part 4 on the other side, the repulsive force of the spring 6 acts and the handrail movable part 4 displaces itself from the storage position to the use position. It is possible to provide the handrail device. The second movable means has a spring 8 one of which is fixed to the upper surface 1a of the car and the other of which is fixed to the back side of the work table 7, so that the worker can get on the upper surface 1a of the car 1 and move the work table 7 to the work table 7. It is possible to provide an elevator handrail device in which, when the work table 7 is separated from the work table 7 after stepping in, the repulsive force of the spring 8 acts and the work table 7 returns from the lowered position to the normal position by itself.

Further, the second holding mechanism is provided with the second latch member 13, one of which is fixed to the handrail base portion 3 and the other of which is capable of holding the handrail movable portion 4 in the use position, so that the handrail movable portion 4 is in the storage position. It is possible to provide a handrail device for an elevator that can hold the handrail movable portion 4 in the use position after the displacement of the handrail to the use position.

Embodiment 2.
8 to 11 illustrate a handrail device for an elevator according to Embodiment 2 of the present invention. FIG. 8 is a front view showing the handrail device (when used), and FIG. 9 is a front view showing the handrail device (when stored). It is a figure. 10 is a side view showing an essential part of the handrail device (when used) of FIG. 8, and FIG. 11 is an enlarged view showing an essential part of the handrail device (when stored) of FIG. The handrail device for an elevator according to Embodiment 2 of the present invention is different in that a piston, a cylinder, and a pressure pipe are provided in a main part, and the same symbols are added to the other similar parts and the description thereof will be omitted.

In the figure, the handrail device 15 has a handrail base portion 16 (lower handrail) fixed to the car upper surface 1a, and a handrail movable portion 17 (upper handrail) connected to the handrail base portion 16. The handrail base 16 is provided with a cylinder 18. A piston 19 fitted into the cylinder 18 is provided below the handrail movable portion 17, and the handrail movable portion 17 is arranged so as to be vertically guided in synchronization with the piston 19.

A cylinder 21 and a piston 22 that fits into the cylinder 21 are provided below the work table 20. The upper part of the piston 22 is fixed to the back side of the workbench 20, and the workbench 20 is guided so as to be vertically movable in synchronization with the piston 22 according to the load.

The cylinder 18 of the handrail device 15 and the cylinder 21 of the workbench 20 are connected to each other by a pressure pipe 23. That is, when the piston 22 fitted in the cylinder 21 of the workbench 20 is moved up and down, the air pressure is transmitted to the cylinder 18 via the pressure pipe 23, and the piston 19 of the handrail device 15 fitted in the cylinder 18 becomes the piston 22. It moves up and down in sync with the opposite direction.

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すなわち、条件式（ａ）及び（ｂ）を満たすようにＷ１〜Ｗ３、Ａ１、Ａ２の各値を予め設定することにより、作業員が使用していないときは手摺装置１５が収納位置に自ら定位し、作業員が使用するときは収納位置から使用位置に変位し、作業終了後は自ら使用位置から収納位置に戻るように動作する。Here, when the handrail weight of the handrail device 15 is W1, the area of the handrail-side cylinder 18 is A1, the weight of the workbench 20 is W2, the area of the cylinder 21 of the workbench 20 is A2, and the weight of the worker is W3. The following conditional expressions (a) and (b) for pressure balance are shown.
(A)...

, (B)...

That is, by presetting the respective values of W1 to W3, A1, and A2 so as to satisfy the conditional expressions (a) and (b), the handrail device 15 is orientated to the storage position by itself when the worker is not using it. However, when the worker uses it, it is displaced from the storage position to the use position, and after the work is completed, the worker himself/herself returns to the storage position from the use position.

Next, the operation of the second embodiment configured as described above will be described. When the worker moves to a predetermined position on the upper surface 1a of the car and stops to perform maintenance of the equipment, the workbench 20 arranged at that position is stepped on by the worker. When the workbench 20 is displaced from the normal position to the lowered position by the weight of the worker, the piston 22 is also lowered synchronously. At this time, since a downward load is applied to the workbench 20 by being stepped on by the worker, the air pressure of the cylinder 21 is transmitted to the cylinder 18 via the pressure pipe 23. The air pressure transmitted to the cylinder 18 pushes up the piston 19, so that the handrail movable portion 17 is also displaced upward in synchronization. Here, the position of the piston 19 is maintained as it is due to the air pressure of the cylinder 18 while the worker is stepping on the work table 20 after the handrail movable portion 17 is displaced to the use position. That is, while the position of the piston 19 is maintained, the handrail movable portion 17 is also held at the use position.

When the worker leaves the workbench 20 after the maintenance work is completed, the handrail weight W1, the area A1 of the cylinder 18, the weight W2 of the workbench 20, the area A2 of the cylinder 21, and the weight W3 of the worker are conditions. Since the settings are made so as to satisfy the expressions (a) and (b), the work table 20 is displaced itself from the lowered position to the normal position, and the piston 22 is also raised synchronously. As the piston 22 moves up, the air pressure of the cylinder 21 is transmitted to the cylinder 18 via the pressure pipe 23. Since the air pressure transmitted to the cylinder 18 pushes down the piston 19, the handrail movable portion 17 is also displaced downward in synchronization. After that, the work table 20 displaced to the normal position is held at that position.

As described above, according to the second embodiment, the handrail base portion 16 fixed to the top surface of the car, the handrail movable portion 17 connected to the handrail base portion 16, and the handrail base portion 16 and the handrail movable portion 17 are provided. A first cylinder 18 provided on the handrail base portion 16 is fitted with the first cylinder 18, and the height of the handrail movable portion 17 can be moved up and down between a storage position and a use position. A first piston 19, a work table 20 extending over at least a part of the upper surface 1a of the basket 1 on which the worker stands, a second cylinder 21 provided on the back side of the work table 20, and a second cylinder. A second piston 22 that is fitted to the work table 21 and guides the height of the work table 20 so as to be vertically movable between a normal position and a lowered position according to the weight applied to the work table 20. Since the cylinder 18 and the second cylinder 21 are connected to each other by the pressure pipe 23, when an operator gets on the upper surface 1a of the car 1 to perform maintenance work, the work table 20 is simply stepped on. It is possible to provide an elevator handrail device in which the handrail movable portion 17 itself is displaced from the storage position to the use position without the need for an assembly work by a worker. Further, after the worker finishes the maintenance work, the handrail movable part 17 is displaced from the use position to the storage position by itself without the worker performing the storage work only by leaving the worktable 20. can do.

Embodiment 3.
12 to 15 illustrate an elevator handrail device according to Embodiment 3 of the present invention. FIG. 12 is a front view showing the handrail device (when used), and FIG. 13 is a front view showing the handrail device (when stored). It is a figure. 14 is a side view showing an essential part of the handrail device (when used) of FIG. 12, and FIG. 15 is an enlarged view showing an essential part of the handrail device (when stored) of FIG. The elevator handrail device according to the third embodiment of the present invention is different from the second embodiment in that a spring is provided between the back side of the workbench and the upper surface of the car, and the same symbols are given to other similar portions. The description is omitted.

In the figure, in the handrail device 24, a spring 25 is provided between the back side of the workbench 20 and the car top surface 1a. In the work table 20, the spring 25 is held in a stretched state in the normal position, and the spring 25 is held in a compressed state in the lowered position.

Next, the operation of the third embodiment configured as described above will be described. When the worker moves to a predetermined position on the upper surface 1a of the car and stops to perform maintenance of the equipment, the workbench 20 arranged at that position is stepped on by the worker. When the workbench 20 is displaced from the normal position to the lowered position by the weight of the worker, the piston 22 is also lowered synchronously. At this time, since a downward load is applied to the workbench 20 by being depressed by the worker, the spring 25 changes from the extended state to the compressed state. When the piston 22 descends here, the air pressure of the cylinder 21 is transmitted to the cylinder 18 via the pressure pipe 23. The air pressure transmitted to the cylinder 18 pushes up the piston 19, so that the handrail movable portion 17 is also displaced upward in synchronization. Here, the position of the piston 19 is maintained as it is due to the air pressure of the cylinder 18 while the worker is stepping on the work table 20 after the handrail movable portion 17 is displaced to the use position. That is, while the position of the piston 19 is maintained, the handrail movable portion 17 is also held at the use position.

When the maintenance work ends and the worker leaves the work table 20, the compressed spring 25 of the work table 20 extends from the compressed state. At this time, due to the repulsive force generated in the spring 25, the workbench 20 displaces itself from the lowered position to the normal position, and the piston 22 rises synchronously. As the piston 22 moves up, the air pressure of the cylinder 21 is transmitted to the cylinder 18 via the pressure pipe 23. Since the air pressure transmitted to the cylinder 18 pushes down the piston 19, the handrail movable portion 17 is also displaced downward in synchronization. Here, when the movable handrail portion 17 is displaced to the storage position, the workbench 20 is displaced to the normal position. After that, the workbench 20 is pushed up by the spring 25, so that the workbench 20 is moved to the normal position. Retained.

As described above, according to the third embodiment, between the handrail base portion 16 fixed to the upper surface of the car 1, the handrail movable portion 17 connected to the handrail base portion 16, and between the handrail base portion 16 and the handrail movable portion 17. And a first cylinder 18 provided on the handrail base 16 and fitted with the first cylinder 18, the height of the handrail movable portion 17 can be moved up and down between the storage position and the use position. The first piston 19, a work table 20 that extends over at least a part of the upper surface 1a of the basket 1 on which the worker stands, a second cylinder 21 provided on the back side of the work table 20, and a second A second piston 22 that fits with the cylinder 21 and guides the height of the workbench 20 up and down between a normal position and a lowered position according to the weight applied to the workbench 20, and one of them is the top surface of the car. 1a and a spring 25 fixed to the back side of the workbench 20 on the other side, and the first cylinder 18 and the second cylinder 21 are connected to each other by the pressure pipe 23. When the passenger gets on the upper surface 1a of the car 1 for performing the maintenance work, the handrail movable part 17 displaces itself from the storage position to the use position by only stepping on the work table 20 without the worker performing the assembly work. A handrail device can be provided. Furthermore, after the worker finishes the maintenance work, the handrail movable unit 17 displaces itself from the use position to the storage position only by leaving the worktable 20 and the worker does not perform the storage work. can do.

Further, in the second embodiment, the handrail weight W1, the area A1 of the cylinder 18, the weight W2 of the work table 20, the area A2 of the cylinder 21, and the weight W3 of the worker satisfy the conditional expressions (a) and (b). Must be set to. On the other hand, in the third embodiment, it is not necessary to satisfy the conditional expressions (a) and (b) by providing the spring 25. Therefore, it is possible to increase the degree of freedom of the set values of the handrail weight W1, the area A1 of the cylinder 18, the weight W2 of the work table 20, the area A2 of the cylinder 21, and the weight W3 of the worker. Can be higher.

Fourth Embodiment
FIG. 16 is a plan view illustrating the arrangement of the workbench for explaining the elevator handrail device according to the fourth embodiment of the present invention. The elevator handrail device according to the third embodiment of the present invention is different in that a workbench is arranged on the landing side of the top surface of a car, and other similar parts are denoted by the same reference numerals and description thereof is omitted.

In the figure, the workbench 26 is arranged in the vicinity of the upper surface 1a of the car 1 as viewed from the vertical projection plane, including the position where an operator puts his/her feet when getting on the upper surface 1a of the car 1 from the hall 27. Next, the operation of the third embodiment configured as described above will be described. In the figure, when the operator gets on the car upper surface 1a of the car 1 from the landing 27 when performing maintenance of equipment such as a hoist installed in the hoistway, the work placed at the position where the operator first reaches his/her feet The table 26 is stepped on by a worker. When the workbench 26 is displaced from the normal position to the lowered position by the weight of the worker, the handrail movable portion 4 is itself displaced from the stored position to the use position. The handrail movable portion 4 is held at the use position after being displaced to the use position.

As described above, according to the fourth embodiment, the workbench 26 is the top surface 1a of the car 1 as viewed from the vertical projection plane, and the position at which the worker reaches his/her feet when getting on the car top surface 1a from the landing 27. Since it is arranged in the vicinity of the work table 26, when the worker starts the work, the work table 26 is stepped on without being aware of it. As a result, the handrail movable portion 4 itself is displaced from the storage position to the use position, so that the worker can work safely from the start of the work.

Although the handrail movable portion 4 is displaced by the spring 6 of the slide mechanism 5 in the first embodiment, for example, instead of the slide mechanism 5, a hinge mechanism is provided between the handrail base 3 and the handrail movable portion 4. A spring or the like capable of operating this hinge mechanism may be provided to displace the height of the handrail movable portion 4 between the storage position and the use position.

Further, in the first and second embodiments, the cylinders 18 and 21 are filled with air. However, it is needless to say that the same action and effect can be obtained by filling other filling materials such as oil and water.

Further, in the second and third embodiments, when the worker separates from the workbench 20, the handrail movable part 17 is displaced from the use position to the storage position by itself, but, for example, as in the first embodiment, the handrail movable part 17 is moved. You may provide the latch member which can hold|maintain in a use position. As a result, even when the worker once works away from the work table 20 during the work, the handrail movable portion 17 is held at the use position, so that the work can be performed safely.

Further, in the fourth embodiment, the workbench 26 is arranged in the vicinity including the position where the worker reaches his/her foot when getting on the car upper surface 1a from the hall 27, but the worker stops when performing maintenance of the hoisting machine. You may arrange|position in the vicinity containing a position. As a result, when the worker performs a specific work, the handrail movable portion 4 is reliably held in the use position, and thus the work can be performed safely.

Further, in the fourth embodiment, the workbench 26 is configured by using the first embodiment, but it is needless to say that the same operation and effect can be obtained by configuring the workbench 26 by using the second or third embodiment.

1 car 1a car top, 2,15,24 handrail device, 3,16 handrail base, 4,17 handrail movable part, 5 slide mechanism, 6,8,14,25 spring, 7,20,26 workbench, 9 , 10 holding mechanism, 11 connecting rod, 12, 13 latch member, 12a receiving part, 18 first cylinder, 19 first piston, 21 second cylinder, 22 second piston, 23 pressure piping, 27 landing

The present invention relates to an elevator handrail device provided on the top surface of a car.

Claims (7)

A handrail base fixed to the top surface of the car, and a handrail movable part that is connected to the handrail base and is vertically movable above the handrail base,
A storage position, which is provided between the handrail movable part and the upper surface of the car, is at an upper end of the handrail base part or at a position higher than the upper position and is held when the handrail movable part is stored, and higher than the storage position. A first movable means for displacing the handrail movable part between a position where the handrail movable part is held when the handrail movable part is used, and
A workbench that is provided so as to spread over the upper surface of the car on which a worker stands and that can move up and down above the upper surface of the car
A normal position which is provided between the work table and the upper surface of the car and is higher than the upper surface of the car and is held when the work table is not used, and a lower position than the normal position that is the work table. There a second movable means for displacement of the lowered position retained, said workbench between when used,
A transmission mechanism for transmitting the displacement of the work table to the first movable means when the work table is displaced from the normal position to the lowered position by the second movable means,
The elevator handrail device, wherein the first movable means displaces the handrail movable portion from the storage position to the use position when the displacement of the workbench is transmitted by the transmission mechanism. The first movable means is provided between the handrail base portion and the handrail movable portion, and a slide mechanism arranged so as to partially overlap each other so as to guide each other in the vertical direction, and one is fixed to the handrail base portion. , The other has an elastic body fixed to the handrail movable portion, and the second movable means has one elastic body fixed to the upper surface of the car and the other fixed to the back side of the workbench. The handrail device for an elevator according to claim 1, further comprising: Includes a hold mechanism you mechanically holding the handrail moving part in the use position,
Before Kiho lifting mechanism, one of which is fixed to the handrail base, claim 1-2 in which the handrail moving part to the other, characterized in that a holding capable latches member in the use position Elevator handrail device described in. A handrail base fixed to the upper surface of the car, and a handrail movable part connected to the handrail base,
A first cylinder provided between the handrail base and the handrail movable part is fitted to the first cylinder provided on the handrail base, and the height of the handrail movable part is used as a storage position. A first piston that allows it to move up and down between positions,
A work table that extends over at least a part of the upper surface of the basket on which the worker stands, a second cylinder provided on the back side of the work table, and the second cylinder, and the work table is fitted to the work table. A second piston that guides the height of the work table in a vertically movable manner between a normal position and a lowered position according to the weight,
A handrail device for an elevator, characterized in that the first cylinder and the second cylinder are connected to each other by pressure piping. The elevator handrail device according to claim 4, further comprising an elastic body, one of which is fixed to the upper surface of the car and the other of which is fixed to a back side of the workbench. 6. The workbench is arranged on the upper surface of the car as viewed from a vertical projection plane, in the vicinity including a position where an operator stops when performing maintenance of the hoisting machine. An elevator handrail device according to any one of 1. 2. The workbench is arranged on the upper surface of the car as seen from a vertical projection plane, including a position where an operator puts his/her feet when getting on the upper surface of the car from a landing. The handrail device for an elevator according to any one of 1 to 6.

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